Heater.



- PATENTED APR. 21, 1903. T. E. GROVER & A. A. BOWE.

HEATER.

APPLICATION FILED MAY 27. 1902.

no MODEL.

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UNITED STATES PATENT OFFICE.

THOMAS E. GROVER AND ALBERT A. BOWE, OF PHILAIdELPHIA, PENNSYLVANIA.

H EATE R.

SPECIFICATIONforming part of Letters Patent No. 726,158, dated April 21, 1903.

Application filed May 27, 1902.

TontZZ whom it may concern: Be it known that we, THOMAS E. GROVE and ALBERT A. BOWE, citizens of the United States, residing at Philadelphia, county of Philadelphia,and State of Pennsylvania,have invented a certain new and useful Improvement in Heaters, of which the following is a specification.

Our invention relates to a new and useful improvement in heaters, and has for its object to so construct the dome of the heater over the fire-pot that cold air may be led into the heater and be heated directly over the fire, thus assuring a better flow of heated air through the house.

With these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claim.

In order that those skilled in the art to which this invention appertaius may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, forming a part of this specification, in.

which- Figure 1 is a vertical section through a heater, showing our improvement applied thereto; Fig. 2, a section on the line 2 2 of Fig. 1.

In heaters of usual construction the cold air from the exterior of the heater enters and flows up outside of thedome and fire-pot di-" rectly to the heater-pipes, and for this reason the cold air is generally taken from the cellar and not from the outside, as when taken from the outside of the house it, flowing directly upward into the heater-pipes, will not have sufficient timeto become heated, and thereforev is liable to reduce the temperature.

A represents the fire-pot. B is the dome, and O is the smoke-passage. The dome is made, as usual, with theopenings D leading from the interior of the dome to the smoke Serial No. 109,135.. (No model.)

of the dome, through which the products of combustion could pass to the smoke-chamber, and we close the upper portion of the dome entirely'by a plate'or diaphragm G, thus forming'a space Hin'the upper end of the dome, and from thisspace leads an opening I through the upper end of the dome, which communicates directly with the heater-pipes. Inside of the dome are arranged two elbow-pipes J, which extend from the exterior of the side of the dome upward through the dome over the fire-bed and enter the space H through the plate or diaphragm G. These elbows extend outward from each side of the dome, and only one is designed to be used at a time, the one not being used being closed by a plate or cover K. With the other one is connected a pipe or duct L, which extends through the shell of the heater to the outside of the house to receive the'cool fresh air. Of course the heater could be made with only one of these elbows; but we prefer to use two, so that the coldair pipe can be connected from either side to accommodate itself to the arrangement of the cellar in which the heater is located. Thus it will be seen that the cold air entering the elbow J directly over the firebed will be heated while passing through this elbow, and this air. will again be exposed to the heat when passing into the chamber H, as the diaphragm or plate G is directly over the'fire-be'd, and in this way the furnace will be supplied constantly with fresh cool air, which'will be heated to the required degree before passing to the heater-pipes.

Our invention would be of great ad vantage to heaters, as it is,a necessity for the proper working of the heater for the same to be supplied with fresh cool air from theexterior of the house.

Of course we do not wish to be limited to the exact construction here shown, as slight modifications could be made withoutdeparting from the spirit of our invention.

Having thus fully describedour invention, what We claim as new and useful is The combination in a heater, of a fire-pot, a dome located over the fire-pot, passages extending from the dome to the smoke-chamber, a plate or diaphragm extending across the dome dividing it horizontally, leaving a space between said plateordiaphragin and theupper duct and extending outside of the house or end of the dome, the upper end of the dome apartment in which the heater islocated, subbeing provided with an opening coininunicatstantially as and for the purpose specified.

ing with the space from which the heater- In testimony whereof We have hereunto l5 5 pipes extend, two elbow-ducts extending from aflixed our signatures in the presence of two the space between the plate or diaphragm and subscribing witnesses.

the upper end of the dome vertically down- THOMAS E. GROVER. ward, and then turning in a horizontal direc- ALBERT A. BOWE. tion and extending out of the sides of the dome Witnesses:

:0 upon opposite sides, one of said ducts adapt- H. B. HALLOCK,

ed to be closed, a pipe connected to the other L. W. MORRISON. 

